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ONTARIO, Ore. -- A second fire in a few weeks at the Heinz Frozen Foods plant in Ontario was mostly contained by the sprinkler system.

Fire Chief Al Higinbotham tells the Ontario Argus Observer no cause has been determined for the fire on Sunday night in a dry storage facility, and there's no estimate of damage.

He says the sprinkler system had the fire in check when firefighters arrived. Workers used forklifts to haul out cardboard in totes so the flames could be extinguished.

A fire on Dec. 21 in the packaging area of the plant caused extensive damage. Police have said no foul play was suspected. The company hasn't said when the plant will resume normal operations.

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